Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
09-06-2024 05:33
Static task
static1
Behavioral task
behavioral1
Sample
a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exe
Resource
win11-20240419-en
General
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Target
a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exe
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Size
4.6MB
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MD5
4173debbc3d407dca3905c212ab537f2
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SHA1
807cd0f7e7337545ecde2a1dec4fd9ad6b31ad7a
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SHA256
a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693
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SHA512
884581348592d891c95e916481d5e2b2fe1aeef7fd55b25acf2010bf542c7f3e6f15e7be6ec1f2813e9a4dc0cbc853c9c0beca2c13b0d6bc5d1e8a2a6827d57d
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SSDEEP
98304:mTMDgLaCF/V6GoPhbZQ0sdYJi4LXyrk/BAqZ0pyrXFtbrKeDYSLdCu9zlp:kMDEaG/V6PPhb5sGJDLCrkCXSFlrKUYy
Malware Config
Extracted
socks5systemz
bubkvdl.com
http://bubkvdl.com/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff818c1ee969b39
Signatures
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Detect Socks5Systemz Payload 1 IoCs
Processes:
resource yara_rule behavioral1/memory/4560-90-0x00000000009C0000-0x0000000000A62000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmpvirtualsoundcard.exevirtualsoundcard.exepid process 4044 a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp 3688 virtualsoundcard.exe 4560 virtualsoundcard.exe -
Loads dropped DLL 1 IoCs
Processes:
a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmppid process 4044 a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp -
Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
Processes:
description ioc Destination IP 45.155.250.90 -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmppid process 4044 a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exea408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmpdescription pid process target process PID 380 wrote to memory of 4044 380 a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exe a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp PID 380 wrote to memory of 4044 380 a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exe a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp PID 380 wrote to memory of 4044 380 a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exe a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp PID 4044 wrote to memory of 3688 4044 a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp virtualsoundcard.exe PID 4044 wrote to memory of 3688 4044 a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp virtualsoundcard.exe PID 4044 wrote to memory of 3688 4044 a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp virtualsoundcard.exe PID 4044 wrote to memory of 4560 4044 a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp virtualsoundcard.exe PID 4044 wrote to memory of 4560 4044 a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp virtualsoundcard.exe PID 4044 wrote to memory of 4560 4044 a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp virtualsoundcard.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exe"C:\Users\Admin\AppData\Local\Temp\a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:380 -
C:\Users\Admin\AppData\Local\Temp\is-9FUP1.tmp\a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp"C:\Users\Admin\AppData\Local\Temp\is-9FUP1.tmp\a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp" /SL5="$600EA,4585671,54272,C:\Users\Admin\AppData\Local\Temp\a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4044 -
C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.exe"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.exe" -i3⤵
- Executes dropped EXE
PID:3688 -
C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.exe"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.exe" -s3⤵
- Executes dropped EXE
PID:4560
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3804 --field-trial-handle=2272,i,4858140932023865871,5726683989663339295,262144 --variations-seed-version /prefetch:81⤵PID:4960
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\is-43TOO.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-9FUP1.tmp\a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmpFilesize
680KB
MD553a94211658a6bbf3d3a695470f940a6
SHA1a9909ddfc97dee691e9d60b1257d61a3c1ef4e07
SHA256d4928c3cacf826943bb44385aac5fb52e6ac69054f31a463df266baf9aa26d01
SHA512d9c916961abcce8f05089df9cb6310c930aaa29266bfaf378a4dd0c9180ba9186a81393c662ba2a3b1a4da587379d68d532250c1a8d216d44dd532aaf178b402
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C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.exeFilesize
2.6MB
MD5a0ac562bedc60906db18a7457c4a3e33
SHA1f9e83a91e0c8609a355bafa25c88a0ae30107fed
SHA256728d3595972daf3b92bd052193a13a079d0862604c6a88fb3acd739cf08ec38a
SHA512ccaa43278a250cc6ce03d04344ebd57e928d99e93b83a938eeba65c25a7255de5cadd51bc4d593214a2232c214a47a7c1a0e0ca56cb398e0d74c886470650414
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memory/380-2-0x0000000000401000-0x000000000040B000-memory.dmpFilesize
40KB
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memory/380-7-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/380-0-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/380-70-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/3688-66-0x0000000000400000-0x00000000006A4000-memory.dmpFilesize
2.6MB
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memory/3688-61-0x0000000000400000-0x00000000006A4000-memory.dmpFilesize
2.6MB
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memory/3688-62-0x0000000000400000-0x00000000006A4000-memory.dmpFilesize
2.6MB
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memory/3688-63-0x0000000000400000-0x00000000006A4000-memory.dmpFilesize
2.6MB
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memory/4044-71-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/4044-8-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/4044-57-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/4560-85-0x0000000000400000-0x00000000006A4000-memory.dmpFilesize
2.6MB
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memory/4560-73-0x0000000000400000-0x00000000006A4000-memory.dmpFilesize
2.6MB
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memory/4560-76-0x0000000000400000-0x00000000006A4000-memory.dmpFilesize
2.6MB
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memory/4560-77-0x0000000000400000-0x00000000006A4000-memory.dmpFilesize
2.6MB
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memory/4560-80-0x0000000000400000-0x00000000006A4000-memory.dmpFilesize
2.6MB
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memory/4560-82-0x0000000000400000-0x00000000006A4000-memory.dmpFilesize
2.6MB
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memory/4560-69-0x0000000000400000-0x00000000006A4000-memory.dmpFilesize
2.6MB
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memory/4560-89-0x0000000000400000-0x00000000006A4000-memory.dmpFilesize
2.6MB
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memory/4560-90-0x00000000009C0000-0x0000000000A62000-memory.dmpFilesize
648KB
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memory/4560-95-0x0000000000400000-0x00000000006A4000-memory.dmpFilesize
2.6MB
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memory/4560-98-0x0000000000400000-0x00000000006A4000-memory.dmpFilesize
2.6MB
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memory/4560-100-0x0000000000400000-0x00000000006A4000-memory.dmpFilesize
2.6MB
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memory/4560-103-0x0000000000400000-0x00000000006A4000-memory.dmpFilesize
2.6MB
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memory/4560-106-0x0000000000400000-0x00000000006A4000-memory.dmpFilesize
2.6MB
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memory/4560-108-0x0000000000400000-0x00000000006A4000-memory.dmpFilesize
2.6MB
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memory/4560-111-0x0000000000400000-0x00000000006A4000-memory.dmpFilesize
2.6MB